US1947207A - Electric incandescent lamp - Google Patents
Electric incandescent lamp Download PDFInfo
- Publication number
- US1947207A US1947207A US498367A US49836730A US1947207A US 1947207 A US1947207 A US 1947207A US 498367 A US498367 A US 498367A US 49836730 A US49836730 A US 49836730A US 1947207 A US1947207 A US 1947207A
- Authority
- US
- United States
- Prior art keywords
- arbor
- electric incandescent
- incandescent lamp
- stem
- lamp
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000011521 glass Substances 0.000 description 6
- 238000010276 construction Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000010425 asbestos Substances 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 229910052895 riebeckite Inorganic materials 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01K—ELECTRIC INCANDESCENT LAMPS
- H01K7/00—Lamps for purposes other than general lighting
- H01K7/06—Lamps for purposes other than general lighting for decorative purposes
Definitions
- My invention relates to electric incandescent the arbor 12, supplies additional supporting means lamps and more particularly to elongated lamps for the lament.
- the leads are Wound around the arbor of the glass stem.
- the leads are wound in a double helix and both contact with the arbor.
- they are wound around said arbor but have an insulating sleeve between them.
- Fig. 1 is a side elevation of the lamp of my invention
- Fig. 2 is a side elevation of a portion of a lamp embodying a modification of my invention.
- my lamp comprises the glass bulb 10 within which is supported a stem 11, a
- the stem is of the usual tipless construction, disclosed in Mitchell and White Patent 1,423,956, having the exhaust tube 16 and sealed thereinto at the stem press 17, the leading-in wires 13-14.
- the leading-in wires are wound around the arbor. As shown, these wires are wound into a double helix and do not touch each other at any point.
- one of the leading-in wires is wound over a sheet of insulating material 19, such as asbestos, which covers the helix formed by the other Wire.
- insulating material 19 such as asbestos
- an electric incandescent lamp the combination of an elongated bulb, a glass stem therein comprising an arbor, a. lament, and a pair of inner leads extending from said stem and connected toand serving to support said filament, e0 said inner leads having portions thereof wound around said arbor so as to form a double helix.
- an electric incandescent lamp the combination of an elongated bulb, a glass stem therein comprising an arbor, a filament, a pair of inner leads extending from said stem and connected to and serving to support said lament, said inner leads having adjacent portions thereof wound around said arbor, and an insulating sleeve between said portions of said leads.
Description
lFeb. 13, 1934.
C34 LESSMANN ELECTRIC INCANDES CENT LAM? Filed NOV. 25, 1930 TN VEN TDF.. -D FIFA/ l EESM NN,
FI-FIS TTUANEY Patented Feb. 13, 1934 UNlTED STATES PATENT OFFICE ELECTRIC INCANDESCENT LAMP Application November 26, 1930, Serial No. 498,367, and in Germany February 8, 1930 3 Claims.
My invention relates to electric incandescent the arbor 12, supplies additional supporting means lamps and more particularly to elongated lamps for the lament.
of the decorative type such as candle lamps in which comparatively long leads are necessary as 5 the lament is located in the tip end of the lamp. My invention provides a very secure means of supporting the said leads to prevent short circuits between them and undue vibration of the filament from shock.' According to my invention the leads are Wound around the arbor of the glass stem. In one form the leads are wound in a double helix and both contact with the arbor. In another form, they are wound around said arbor but have an insulating sleeve between them. Other fea tures and advantages of my invention will appear from the following description of species thereof and from the accompanying drawing.
In the drawing, Fig. 1 is a side elevation of the lamp of my invention; and Fig. 2 is a side elevation of a portion of a lamp embodying a modification of my invention.
Referring now to the drawing, and more particularly to Fig. 1, my lamp comprises the glass bulb 10 within which is supported a stem 11, a
What I claim as new and desire to secure by Letters Patent of the United States, is:
1. In an electric incandescent lamp, the combination of an elongated bulb, a glass stem therein comprising an arbor, a filament, and inner leads extending from said stem and connected to and serving to support said lament, said inner leads having portions thereof wound around said arbor. 'Z5
2. In an electric incandescent lamp, the combination of an elongated bulb, a glass stem therein comprising an arbor, a. lament, and a pair of inner leads extending from said stem and connected toand serving to support said filament, e0 said inner leads having portions thereof wound around said arbor so as to form a double helix.
3. In an electric incandescent lamp, the combination of an elongated bulb, a glass stem therein comprising an arbor, a filament, a pair of inner leads extending from said stem and connected to and serving to support said lament, said inner leads having adjacent portions thereof wound around said arbor, and an insulating sleeve between said portions of said leads. 9o
GOTTFRIED LESSMANN.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE514969T | 1930-02-09 |
Publications (1)
Publication Number | Publication Date |
---|---|
US1947207A true US1947207A (en) | 1934-02-13 |
Family
ID=34070064
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US498367A Expired - Lifetime US1947207A (en) | 1930-02-09 | 1930-11-26 | Electric incandescent lamp |
Country Status (2)
Country | Link |
---|---|
US (1) | US1947207A (en) |
DE (1) | DE514969C (en) |
-
1930
- 1930-02-09 DE DE1930514969D patent/DE514969C/en not_active Expired
- 1930-11-26 US US498367A patent/US1947207A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE514969C (en) | 1930-12-22 |
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